If you were lucky enough to snag the free Facebook app for the PS Vita last week while it was briefly available, you probably found its performance balky, at best. Shortly thereafter, Sony unsurprisingly it pulled from the PlayStation Store, noting issues stemming from Facebook side of town. Well, good news just came in from Sony's PlayStation Twitter account -- Zuckerberg's app is "fully restored" and ready for your downloading pleasure. Facebook's relationship with Vita OS will, hopefully, be less "complicated" this time around, but let us know how...